"And...isn't it a bad thing if our poetry only makes sense to ourselves? If it does, isn't that really just writing journal entries rather than poetry?"
I will always get at least one person saying, "You know, I really don't understand your poetry." To be blunt and honest, I don't really care. However, if I have written a poem that I feel no one else besides me could possibly relate to, then I either rewrite it or throw it away. So basically, I don't write for people to understand, but I do consider whether or not what I'm sharing is in fact sharing or just my ramblings.
The difference between my journals and my poetry is that while both are completely personal, my poetry is something that can be applied to the public. My journals are full of nonsense that at times even I don't understand.
I'm not sure if this difference applies to everyone, but this is just a perspective to consider (perhaps).
the faeries creep into my hair at night leaving it in terrible knots